Can they stop the conquest of Hellenger Prime and learn why the Skylar have turned the immense manufacturing capacity of the galactic engineers to their own designs? Is it possible to undo the damage these new enemies have already done? Join Noah and the crew as they explore this key homeworld of the Reach Galaxy and stop the Skylar armada from taking a huge chunk of it with them to the next galaxy. All they must do is stop aliens that were clever enough to escape the Seer and who are fierce enough to smash Tytons.